Synthesis of 2-methyl-3-carbethoxypyrylium salts by the condensation of ethoxymethyleneacetoacetic ester with ketones

Chemistry of Heterocyclic Compounds - 1971
G. N. Dorofeenko1, E. P. Olekhnovich1, L. I. Laukhina1
1Rostov-on-Don State University, USSR

Tóm tắt

A method is proposed for the synthesis of 2-methyl-3-carbethoxypyrylium salts by the acid condensation of ethoxymethyleneacetoacetic ester with alkyl aryl, heterocyclic, and cyclic ketones or resorcinol. 2-Methyl-3-carbethoxy-6-phenylpyrylium perchlorate was condensed with benzaldehyde, and the product was subjected to acid hydrolysis and decarboxylation to 2-methyl-6-phenylpyrylium perchlorate to confirm the structure of the synthesized salts.

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Tài liệu tham khảo

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Chemistry of Heterocyclic Compounds

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